body {
  background-color: #7cb342;
}

header {
  color: whitesmoke;
  text-align: center;
  font-size: 1.4em;
}

#pic_all_content{
  width: 95%;
  border-radius: 2%;
  overflow:hidden;
  background-color: #558b2f;
  box-shadow: 0 2px 4px 0 rgba(0,0,0,0.2);
}


#jsmind_container{
    width:850px;
    height:100%;
    border:solid 1px #ccc;
    border-radius: 5%;
    background:#f4f4f4;
    overflow: hidden;
}
 
/* div居中 */
.feedback-overlay-black{
    background-color:#000;
    opacity:0.5;
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:100%;
    margin:0;
  }

  div{
    margin:0 auto;
    
  }

  h1{
    border-bottom:1px solid white;
  }

  h2{
    background: #efefef;
    padding:10px;
  }

a,a:link,a:visited,a:active{
    font-weight: bold;
    font-family: 'Courier New', Courier, monospace;
    text-decoration: none;
    color:inherit;
}


  /* 弹窗 (background) */
.modal {
  display: none; /* 默认隐藏 */
  /*生成绝对定位的元素，相对于浏览器窗口进行定位。*/
  position: fixed; 
  z-index: 10; 
  left: 0;
  top: 0;
  /*设置弹窗位置*/
  padding: 50px;
  
  /*浮在全屏上*/
  width: 100%; 
  height: 100%; 
  background-color: rgb(0,0,0); 
  background-color: rgba(0,0,0,0.4);
  /*overflow：auto；如果内容被修剪，则浏览器会显示滚动条，以便查看其余内容。*/
  overflow: auto; 
}

/* 弹窗内容 */
.modal-content {
  position: relative;
  /*弹窗背景色设置*/
  width: 100%;
  height: 100%;
  box-shadow: 0 2px 4px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
  -webkit-animation-name: animatetop;
  -webkit-animation-duration: 0.4s;
  animation-name: animatetop;
  animation-duration: 0.4s
}

/* 添加动画 */
@-webkit-keyframes animatetop {
  from {top:-200px; opacity:0} 
  to {top:0; opacity:1}
}

@keyframes animatetop {
  from {top:-200px; opacity:0}
  to {top:0; opacity:1}
}

/* 图标 */
.css-1xamfmm {
  display: flex;
  cursor: pointer;
  width: 56px;
  height: 56px;
  background-color: #33691e;
  position: absolute;
  border-radius: 50%;
  visibility: visible;
  box-shadow: 0 2px 6px 0 rgba(0,0,0,0.14), 0 1px 5px 0 rgba(0,0,0,0.12), 0 3px 6px -2px rgba(0,0,0,0.2);
  border-style: none;
}

.css-1bgbwga {
  position: relative;
  width: 28px;
  height: 28px;
  margin: auto;
}
  
 

 

 